Age Calculator
Work out an exact age in years, months and days, with total weeks and days, the weekday you were born on and the time to your next birthday.
Everyday
Everyday Calculators
The calculations that come up in ordinary life rather than in finance: how old someone is, how long until a date, a percentage, an average. Every one runs in your browser.
4 calculators
Everyday Arithmetic
Days Between Dates
Count the days, weeks, months and working days between any two dates. Runs entirely in your browser.
Percentage Calculator
Work out a percentage of a number, what one number is as a percentage of another, and percentage increase or decrease - with the working shown.
Average Calculator
Work out the mean, median, mode, range and standard deviation of any list of numbers. Paste from a spreadsheet or type them in.